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Effect of high-frequency currents on interrupting performance of GCBs

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5 Author(s)
Kawano, H. ; Toshiba Corp., Kawasaki, Japan ; Ishikawa, M. ; Toda, H. ; Yokota, T.
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With electric power systems, it is shown by calculations that as the transmission voltage rises, high-frequency components contained in the fault current could remain until current interruption. This paper describes the influence of high-frequency current on the thermal and dielectric performance of a gas circuit breaker (GCB) by analyzing arc and hot gas flow. It has been proved that the model used for interruption tests simulating high-frequency components has sufficient performance for practical application

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Power Delivery, IEEE Transactions on  (Volume:9 ,  Issue: 3 )